MS-PS4-3

Integrate qualitative scientific and technical information to support the claim that digitized signals (sent as wave pulses) are a more reliable way to encode and transmit information.

  1. Computing

    Computer hackers take to the cloud

    People use cloud computing for storing files online. A new study shows the dark side of the cloud: These services can harbor malware.

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  2. Tech

    Star Trek technology becomes more science than fiction

    On Star Trek, the characters used devices that seemed wild, futuristic and impossible. But those sci-fi gadgets are inspiring real-world, useful inventions.

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  3. Brain

    Cool Jobs: Video game creators

    Meet an engineer who worked on StarCraft II, an expert building a new kind of reality and a neuroscientist who uses games as brain therapy.

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  4. Health & Medicine

    New study raises questions about cell phone safety

    U.S. government study in rats links cell-phone radiation to a small increase in brain cancers and heart tumors. Some scientists now worry about lifetime risks to today’s children and teens.

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  5. Planets

    The ultimate getaway — visiting the Red Planet

    At a recent summit, experts discussed the challenges of a human mission to Mars — and how to land a crew there within 20 years.

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  6. Computing

    DNA can now store images, video and other types of data

    Tiny test tubes might one day replace sprawling data-storage centers, thanks to a new way to encode and retrieve information on strands of synthetic DNA.

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  7. Brain

    When smartphones go to school

    Students who use smartphones and other mobile technology in class may well be driven to distraction. And that can hurt grades, studies show.

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  8. Physics

    How to pick up messages after they’re gone

    By watching for light’s ‘echoes,’ physicists think they can retrieve information being relayed by or as light. It could make it possible for astronomers to view distant objects without having to see the light they cast off.

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  9. Tech

    Digital displays get flexible

    Flexible and unbreakable digital displays could soon be for sale, thanks to a new organic transistor made from plastic.

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  10. Physics

    Laser tweezers grab nano bits

    An optical fiber, a bit of gold and a laser make up a new type of tweezers. Scientists may soon use it to pick up and move around individual viruses or proteins.

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  11. Animals

    Explainer: Tagging through history

    What started as little metal bands have evolved into high-tech devices — some of which rely on satellites to share their findings.

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  12. Tech

    Cell phones on the brain

    When an active cell phone is pressed against the ear, the brain gets busier.

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